commit b4baf102bc6ee641f7f1946174f432feaf3f0836
author Danil Chapovalov <danilchap@webrtc.org> Fri May 15 14:49:37 2020
committer Commit Bot <commit-bot@chromium.org> Fri May 15 18:13:04 2020
tree 166332963c4984ab0ccff8208a089b106b883374
parent 576ad5d510894040d7bbc041d5c86745c67f30f8

in DependencyDescriptor writer do not leave remaing bits uninitialized

Bug: b/156462854
Change-Id: Iaceadb9cebdf5c4a34ff794966535cc873a53399
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/175109
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Erik Varga <erikvarga@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31282}

modules/rtp_rtcp/source/rtp_dependency_descriptor_writer.cc

diff --git a/modules/rtp_rtcp/source/rtp_dependency_descriptor_writer.cc b/modules/rtp_rtcp/source/rtp_dependency_descriptor_writer.cc
index 9e1a425..d933a94 100644
--- a/modules/rtp_rtcp/source/rtp_dependency_descriptor_writer.cc
+++ b/modules/rtp_rtcp/source/rtp_dependency_descriptor_writer.cc
@@ -74,6 +74,11 @@
     WriteExtendedFields();
     WriteFrameDependencyDefinition();
   }
+  size_t remaining_bits = bit_writer_.RemainingBitCount();
+  if (remaining_bits > 0) {
+    // Zero remaining memory to avoid leaving it uninitialized.
+    WriteBits(/*val=*/0, remaining_bits);
+  }
   return !build_failed_;
 }